The addition of the twist while standing works the obliques and waist.
Reps: 12, each side
•Stand on your left leg with the leg that is correct you with a little bit of weight on your toes for balance; both knees are slightly bent. Place your hands behind head.
•Pull your abs toward your spine and back keep your right as you hinge forward from your own hips until your torso is nearly parallel to the floor.
•With a straight back that is flat press through your remaining heel and return to standing as you twist your ribs and shoulders to the left. Your pelvis should remain still. This completes one rep.
•Do 12 reps, then switch edges.